The calm early morning hours around Mt. Hamner were suddenly disturbed when the precocious peak erupted in a violent array of smoke, fire, and heat. Residents, awakened by the disturbance, evacuated quickly. Many were confused and perplexed as the crag gave no warning of eruption. USGS surveyors, also caught by surprise, scrambled to analyze data …The calm early morning hours around Mt. Hamner were suddenly disturbed when the precocious peak erupted in a violent array of smoke, fire, and heat. Residents, awakened by the disturbance, evacuated quickly. Many were confused and perplexed as the crag gave no warning of eruption. USGS surveyors, also caught by surprise, scrambled to analyze data …